thanks for sharing. I used a wooden plank, around 1 meter long, to jack up the rear. This made sure the entire rear was lifted. This avoided any twist in the chassis. I also tried to align coilover and chassis braces by using a tool with similar diameter as the bolt. Somehow I still couldnt get the alignment. So I decided to remount the original coilovers and will take the car to my dealer. They are better equiped and enjoy the experience I lack.
All in all I had to deal with a bit of frustration :-). But I also learnt a lot - so no complaints